An example of a natural polymer formed by many units of monosaccharides is

1 Answer

Answer :

starch.

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Last Answer : Natural rubber is a polymer of 1,3-Butadiene

Description : In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer? (A) PTFE (B) Buna-S (C) PMMA (D) Polycaprolactam

Last Answer : (B) Buna-S

Description : . In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher (A) Densities (B) Melting point (C) Tensile strength (D) Hardness, rigidity & brittleness

Last Answer : (D) Hardness, rigidity & brittleness

Description : In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross￾linked polymer? (A) Bakelite (phenol formaldehyde) (B) Polyester (C) Polythene (D) Nylon-6

Last Answer : (A) Bakelite (phenol formaldehyde)

Description : What are the commonest monosaccharides? -Biology

Last Answer : answer:

Description : The distinguishing test between monosaccharides and dissaccharide is (A) Bial’s test (B) Seliwanoff’s test (C) Barfoed’s test (D) Hydrolysis test

Last Answer : C

Description : Whcih of the following features are common to monosaccharides? (A) Contain asymmetric centres (B) Are of 2 types – aldoses and ketoses (C) Tend to exist as ring structures in solution (D) Include glucose, galactose and raffinose

Last Answer : C

Description : The distinguishing test between monosaccharides and dissaccharides is (A) Bial’s test (B) Selwanoff’s test (C) Barfoed’s test (D) Hydrolysis test

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Description : In the diet of a diabetic patient, the recommended carbohydrate intake should preferably be in the form of CARBOHYDRATES AND CARBOHYDRATE METABOLISM 11 (A) Monosaccharides (B) Dissaccharides (C) Polysaccharides (D) All of these

Last Answer : C

Description : The general formula of monosaccharides is (A) CnH2nOn (B) C2nH2On (C) CnH2O2n (D) CnH2nO2n

Last Answer : A

Description : Monosaccharides that are used as energy source

Last Answer : Ans. Glucose and fructose

Description : Monosaccharides possess reducing property due to the presence of

Last Answer : Ans. Free aldehyde or keto group

Description : Sucrose consists of what monosaccharides?

Last Answer : Glucose + fructose.

Description : What are the component monosaccharides of lactose?

Last Answer : Galactose and glucose.

Description : Name some important monosaccharides.

Last Answer : Glucose, fructose, galactose, mannose.

Description : How are monosaccharides further classified?

Last Answer : Sugars having aldehyde group are called aldoses and sugars with keto group are ketoses.

Description : Which of the following biomolecules does have a phosphodiester bond? (a) Amino acids in a polypeptide (b) Nucleic acids in a nucleotide (c) Fatty acids in a diglyceride (d) Monosaccharides in a polysaccharide

Last Answer : b) Nucleic acids in a nucleotide

Description : All of the following monosaccharides give the same osazone except (a) Galactose (b) Glucose (c) Fructose (d) Mannose

Last Answer : Galactose

Description : . Monosaccharides are classified according to : (a) the number of carbon atoms in the molecule. (b) whether they contain an aldehyde or a ketone group (c) their configurational relationship to glyceraldehyde. (d) all of the above

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Description : general formula of monosaccharides is (A) CnH2nOn (B) C2nH2On (C) CnH2O2n (D) CnH2nO2n

Last Answer : (A) CnH2nOn

Description : Which of the following terms best fits the statement: "Process by which polysaccharides are degraded to monosaccharides." w) hydrolysis x) glycolosis y) lipogenesis z) none of the above

Last Answer : ANSWER: W -- HYDROLYSIS 

Description : The bacteria which cause dental cavities in humans break down sugars, releasing what chemical, that causes tooth destruction? a) acids b) bases c) enzymes d) monosaccharides

Last Answer : ANSWER: A -- acids

Description : Humans cannot digest cellulose because: a) it does not contain sugars b) it is made up of disaccharides c) it is made up of monosaccharides d) humans lack the proper enzymes

Last Answer : ANSWER: D -- HUMANS LACK THE PROPER ENZYMES 

Description : What are Lipids? (1) Lipids are monosaccharides (2) Lipids do not provide energy to cells (3) Fruits are a good source of lipids (4) Cholesterol and trans fatty acids are types of Lipids

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Description : Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties. (A) Thermoplastic (B) Thermosetting (C) Elastometric (D) Brittleness

Last Answer : (C) Elastometric

Description : Natural rubber is a polymer of?

Last Answer : Isoprene

Description : The major natural polymer present in paper is

Last Answer : Cellulose.

Last Answer : Polymers that are found in nature are called natural polymers

Description : Natural rubber is a polymer of:

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Description : Synthetic polymer which resembler natural rubber is:

Last Answer : Synthetic polymer which resembler natural rubber is: A. neoprene B. chloroprene C. glyptal D. nylon

Description : Which of the following is a natural polymer?

Last Answer : Which of the following is a natural polymer? A. Bakelite B. Cellulose C. PVC D. Nylon

Description : Natural rubber is a polymer derived from? (1) ethylene (2) propylene (3) isoprene (4) butadiene

Last Answer : (3) isoprene Explanation: Natural rubber is an addition polymer that is obtained as a milky white fluid known as latex from a tropical rubber tree.

Description : Natural rubber is a polymer of – (1) Vinyl acetate (2) Propene (3) Isoprene (4) Styrene

Last Answer : (3) Isoprene Explanation: Natural rubber consists of suitable polymers of the organic compound isoprene, with minor impurities of other organic compounds plus water. Isoprene is produced and emitted by ... trees into the atmosphere (major producers are oaks, poplars, eucalyptus, and some legumes).

Description : Natural rubber is the polymer of : (1) Isoprene (2) Styrene (3) Butadiene (4) Ethylene

Last Answer : (1) Isoprene Explanation: Isoprene was first isolated by thermal decomposition of natural rubber. About 95% of isoprene production is used to produce cis-1,4- polyisoprene—a synthetic version of natural rubber.

Description : Which of the following is a natural polymer? (1) Bakelite (2) Nylon (3) Polythene (4) Starch

Last Answer : (4) Starch Explanation: Cotton, starch, cellulose and rubber are some of the naturally occurring polymers. Starch is a condensation polymer made up of hundreds of glucose monomers, which split out ... is also referred to as a polysaccharide, because it is a polymer of the monosaccharide glucose.

Description : Which of the following is not a natural polymer? (1) Wool (2) Silk (3) Cotton (4) Teflon

Last Answer : (4) Teflon Explanation: Natural polymers occur in nature and can be extracted. They are often waterbased. Examples of naturally occurring polymers are silk, wool, DNA, cellulose, cotton and proteins.

Description : Which of the following is a natural polymer? (1) Bakelite (2) Nylon (3) Polythene (4) Starch

Last Answer : (4) Starch Explanation: Cotton, starch, cellulose and rubber are some of the naturally occurring polymers. Starch is a condensation polymer made up of hundreds of glucose monomers, which split out water molecules as they chemically combine.

Description : Natural rubber is a polymer derived from - (1) ethylene (2) propylene (3) isoprene (4) butadiene

Last Answer : (3) isoprene Explanation: Natural rubber is an addition polymer that is obtained as a milky white fluid known as latex from a tropical rubber tree.

Description : Pick out the wrong statement. (A) Polymers made of only one monomer is called homopolymer (B) Polymers made of more than one monomer is called copolymer or mixed polymer (C) Vulcanised rubber is more elastic than natural rubber

Last Answer : (A) Polymers made of only one monomer is called homopolyme

Description : Silicone is a/an (A) Monomer (B) Inorganic polymer (C) Thermoplastic material (D) A natural polymer

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Description : Pick out the wrong statement. (A) Polystyrene is a thermoplastic polymer (B) Protein is a natural polymer (C) Neoprene is a natural rubber (D) Polythene is a copolymer, while SBR is a homopolymer

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Description : Which of the following is not a natural polymer? (A) Nucleic acids e.g. RNA and DNA (B) Polysaccharides (C) Polyisoprene (D) Polyurethane

Last Answer : (D) Polyurethane

Description : Orlan fibre which is used as a wool substitute is (A) An amorphous polymer (B) A natural polymeric fibre (C) Polyacrylonitrile (D) Poly-methyl-methacrylate (PMMA)

Last Answer : (C) Polyacrylonitrile

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Description : Gasoline extracted from natural gas (by compression and cooling) is called the __________ gasoline. (A) Polymer (B) Unleaded (C) Casing head (D) Straight run

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Description : Natural rubber is a polymer of (a) Propene (b) Isoprene (c) Formaldehyde (d) Phenol

Last Answer : Isoprene

Description : Styrene butadiene rubber (SBR) is (A) A natural rubber (B) A synthetic polymer (C) A synthetic monomer (D) Another name of silicone rubber

Last Answer : (B) A synthetic polymer

Description : Natural rubber is a polymer of

Last Answer : Isoprene

Description : Which of the following is a natural polymer? (1) Bakelite (2) Nylon (3) Polythene (4) Starch

Last Answer : Starch

Description : Natural rubber is the polymer of : (1) Isoprene (2) Styrene (3) Butadiene (4) Ethylene

Last Answer : Isoprene